Illuminating fixture gauge



Oct; 16, 1923.

1,470370 I JR H. D'OLIER,

ILLUMINATING FIXTURE GAUGE Filed Dec. 12. 121

Patented Get. 16, 1923.

UNITED "sures PATENT-OFFICE.

HENRY DOLIER, JR, or BRrneEroer, oonnscrrcur.

. ILLUMINATING Application filed December ToaZZ whom it mayconoern: s

Be it known that I, HENRY DOLIER, Jr, a citizen of the United States,residing at Bridgeport, in the county of Fairfield and State ofConnecticut, have invented certain new and usefulImprovements inIlluminating Fixture Gauges, of which the following is a specification.

This invention relates to gauges, and particularly to. a gauge for lampfixtures, whereby the elements of a fixture may be assembled and thecombined fixture accurately gaged or measured from a fixed point on thesocket. f

The object of the present invention is to provide a gauge adapted to fita lamp socket with aslidable member, a. portion of which the socket inoperative position, the point conforms to the heel portionof anilluminating fixture, such as a globe. With the canopy or holder for theglobe mounted on of engagement of the canopy with a globe or otherilluminating devicemay be tested for accuracy of position relativeto thelamp socket. One feature which enables me to accomplish the aboveobjects is theprovision of a graduated rod, on which a sliding memberadapted to engage the canopy may operate, one end of the rod being screwthreaded to conform to the screw threads formed within a lamp socket.

. Another feature that is advantageous is theprovision 'ofa slidingmember, the-outer peripheryof which is made to conform to the heelportions of a globe. Sliding members may beprovided for each type and Psize of globe to be used. With a socket and canopy or holder" assembledtogether, the alignment of the canopy andits limits of adjustment may betested by moving the sliding member into operative'position and notv ingthe position of the sliding member na graduated scale provided on therod.

. Another object of theinvention is to pro; vide a scale along the harsgraduated that r theposition of the sliding memberindi fl ingthe'position of'the securing members on the, canopy or holden'relativeto a point onv the socket may bereadily' determined. Preferably thescale is so arranged that the distance measured is between the socketcon- FIXTURE GAUGE.

12,1921. 'Serial No. 521,824. I

tactiagainst which theend of thebar is v i contact and the plane ofthecanopy holding members which is in the plane of the reduced portion'at the heel of the globe. With these and otherobjects in view, myinvention consists in the features of construction and operation setforth in the following specification and. illustrated in theaccompanying drawing.

In the accompanying drawing annexed hereto and forming a part of thisspecification, I have shown my invention embodied- Y Figure 2 is'a planview of sliding member.

In the above mentioned drawing, I have shown but one modification of theinvention which is now deemed preferable but it'is to be understood thatchanges and modifications may he made within the scopeof the appendedclaims without departing from the spirit of the invention.

Briefly, my invention, in its broadest aspect, comprises the. followingprincipal part-s: first, a bar oil which screw threads arefprovided nearone endadapted .to constandard lamp socket; second, -a sliding memberadapted to move over the rod having'its outer periphery made to conformto the'heel portion of a globe'or otherillumi- 'nating device; andthird, a scaleiextending along the bar wherebythe position'of thesliding member relative jtofthe threaded: end of the barm'ay bereadilyfdeterminedl I:

, Referring more in detail tofthe figuresfof' form to the internaltscrewthreads ,on a f the drawingfat 10 is shown abar having 1,

screw threads 11; atone end adapted to conform to the 'dimensionslof astandard screw 'threadsuch as at 12 formed in a lam socket 13. .As theaxis of the screwthrea s llis 45 I 'EXtendingialongthe ibar is a scale25 in alignment with the axis of the bar 10, ro-

' tation of the bar with the socket '13 thereon will indicate anyeccentricity of the screw threads 12 relative to the axis of the socket.

The accuracy of the screw threads 12 as to lead and dimensions mayalso-be observed.

At 15 is shown a member slidable along the bar 10 haVlHg j-'ltSEOu Q1periphery 16 formed to correspond with the heel of an illuminating globeor otherilluminating device which may be used in conjunction with thesocket 13 and its canopy or globe holder 20, Aconventional form of globeis shown in dotted'outline. It will be understood that the surface 16 asshown is purely conventional andwill be'varied in diameter and contourto conform to the diiierent illuminating devices adapted to be used inconnection with a lamp inserted within the socket 13. Rreferabl'y, asshown in Fig. 2, Icut away a portion of this lighting member 15 asshownat 17. Also, as shown at 18," I c'ounterborethe upper surface ofthe member 15 approximately one-half of its height, so that the bottomsurface 19 of this i counterboredportion 18 of the member 15 will beinJaIi'gnment, with the smallest portion of "the surface16 which portionis adapted to be engaged by fastening means such as 22 on canopy 20. I

'At 20 I' show a conventional form of canopy adapted to be associatedwith the socket 22, the concentricity of this canopy may be determinedi;

havinggraduations extending throughout the m i por io of the b r-,Preil'erab1y,=th zero. 'o'f-cthisv scale is attheupper end 26 ofIthefhar 10,- which end as stated above is adaptedto contact with a partofthesocket.

Ito-

By observing thehposition-of the surface '19 of fthesliding member 15'relative to the scale 25,} the positions ofjthe fastening means 22 oncanopyl;2(l and 'thereforethe heel portion of aglobe adapted to contacttherewith will be readilydetermined This will alsoaindicatelt'heposition of the heelof the globe i relativeyto a fixedpoint onthe socket, TY-r1301 conveniencein reading t'hei'position of.this surface on thescalel25,I'm ake the disgt j-llce between thesurface 19. and theilower vsurface27ofthe sliding member 15 apredetermined dimension such as one inch so that, by knowing thisdistance and the posil ma tion of the lower surface 27 on the scale 25,the position of the securing members 22 below the point of contact 26with the socket 13 may be readily determined.

1 also; preferably split a portion of the member 15, as shown at 30 and,31, toform extensions 32 and use these portions, which haveinherentgesiliency, to provide contact of the sliding member 15 with thebar 10 suiiicient .to hold the member 15 in any adjusted position.

'What I claim is:

1. A lamp fixture gauge comprising in combinatioma bar adapted at onee'ndf'tqbe fittedito a lamp socket, there'being a scale extendingalongone side of said bar, and a member slidablealong said bar andhaving apart conforming in shape to' the heel-portion ofvan illuminating fixturewhereby the adjustment of a fiiture relativetoa lamp socket may readilybe determined. comprising in 2. A lampgfixture gage combination, a baradapted at onee'nd to be fitted to alamp socket 'in'a predeterminedposition relative thereto, there being a'sca'le extending along one sideof i said. bar, and a member slidable along said bar'wandha'ving a partconforming in shape to'th efiheel portion of an illuminatingfixturewheifeby the distance of the heel portion of the fixturebelowfthe lamp socket'may aaiiyte determined.

3;. A lamp fixture gauge cerhprisiilg'in combination, a bar adapted atone end "to be threaded to alamp socket, there bing a scale extendingalong one, sideof'said bar, a e ers ide a ns sa b r an 'h e apartconforming in shape to the heei portion of an, illuminating fixturewhereby the relative, positions offfche fixtureand 'the socket mayreadily be determined; p

. e A am fi ters se ,e mr ng in combination, a bar adapted at one end-to.be fittedto a lamp socketfinalignment'with its axis, there being a Qsca-le extendingfalong one side'of saidbana member steeple-516m said barand h Wi g" a partconforming "in shape to the heel portion of'anillunfinat'ing fixture whereby "the position of a j'fix'ture h l eron. a d; s ket 1' el ve a fix point of said socket may readily bedetermined.

v lamp ffi' ir i'sa s comrr ngf combination, a bar adapted atoneen'djcobe fitted toalamp, socket, there being ja 'scale -extending,alongpne side of said baijfand a member slilda' ble along saidibaradapted .to contact with, globe attaching means on a v ,6. Alamp'jfixture, gaugei co mprisingi'in combination, a bar adapted atoneend 'to be threaded into engagement with a lamp socket, there being ascale extending along" gauge may be used to test the alignment and oneside of said bar, and a member slidable adjustment of y the canopyrelative to the along said bar having a part conforming socket. v I I inshape to the heel portion of an i11umi- In. testimony whereof I heretoafllx my 5 nating fixture and adapted to contact with signature, I I

globe attaching means on a canopy forming a part of said lamp fixture,whereby the y HENRY D7OLIER, JR.

